传感技术学报2017，Vol.30Issue(1)：8-15,8.DOI:10.3969/j.issn.1004-1699.2017.01.002
基于容性耦合电极的可穿戴心电信号检测及其去噪算法研究∗
Research on the Detection and De￣Noising Algorithm of Wearable ECG Signal Based on Capacitive Coupling Electrode
摘要
Abstract
In most traditional electrocardiogram ( ECG ) detection procedures, wet electrodes may cause problems of inconvenience and glue dehydrates over time. The paper designs a kind of wearable capacitive coupling electrode based on the principle of coupling capacity. Due to this kind of wearable capacitive coupling electrode,an improved wavelet threshold de￣noising algorithm is proposed. The algorithm uses the improved threshold function to deal with wavelet coefficients after decomposition and reconstruct ECG signal combining the characteristics of wavelet coeffi￣cients of ECG signal and noise. The MIT￣BIH database was used to validate the algorithm and it indicates that the algorithm can effectively eliminate the noise. The SNR increased by 10. 72% and the RMSE reduced by 27. 29%compared to the other methods,such as,smoothing filtering,morphological filtering and empirical mode decomposition. The results of the experiment show that the system can accurately detect the main characteristics of the ECG signal.关键词
信号处理/容性耦合/改进小波阈值/心电检测Key words
signal processing/capacitive coupling/improved threshold/electrocardiogram detection分类
信息技术与安全科学引用本文复制引用
李鸿强,崔佃银,袁丹阳,曹路,李恩邦..基于容性耦合电极的可穿戴心电信号检测及其去噪算法研究∗[J].传感技术学报,2017,30(1):8-15,8.基金项目
国家自然科学基金项目(61675154,61177078,31271871) （61675154,61177078,31271871）
